package com.mq;

import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.io.IOException;

@Component
@RabbitListener(queues = RabbitConfig.SPRING_BOOT_QUEUE)
public class HelloReceiver {

    @RabbitHandler
    public void process(Channel channel, Message message) {
//        System.out.println("You receiver a message : --> " + hello);
        try {

            // 处理业务

            //告诉服务器收到这条消息 已经被我消费了 可以在队列删掉 这样以后就不会再发了 否则消息服务器以为这条消息没处理掉 后续还会在发
            channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
            System.out.println("receiver success");
        } catch (IOException e) {
            e.printStackTrace();
            //丢弃这条消息
            //channel.basicNack(message.getMessageProperties().getDeliveryTag(), false,false);
            System.out.println("receiver fail");
        }
    }
}
